/*****

Image Cross Fade Redux
Version 1.0
Last revision: 05.06.2009
Proweb

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html

*****/


window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);

var d = document, imgs = new Array(), current = 0, displayTime_ms = 3000;

function so_init() {
	if(!d.getElementById || !d.createElement)return;
	imgs = d.getElementById("xf2_imageContainer").getElementsByTagName("img");
	for (i = 0; i < imgs.length; i++) imgs[i].xOpacity = 0;

	current = Math.floor(imgs.length * Math.random());
	imgs[current].style.display = "block";
	imgs[current].xOpacity = .99;

	setTimeout(so_xfade, displayTime_ms);
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if(cOpacity<=0) {
	    imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade, displayTime_ms);
	} else {
		setTimeout(so_xfade,50);
	}
	
	function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}
	
}